Wrench



Jan. 8, 1924. 1,480,231

J. A. THOMPSON WRENCH Filed Feb. 9. 1922 2 Sheets-Sheet 2 J. A. THOMPSONJan. 8, 1924.

WRENCH Filed Feb. 9, 1922 2 Sheets-Sheet 1 0 Ell/VIZ fgZ/wuflzomyzsozd IWW,

position and the dogs pressed towards the ratchet teeth. It will now beseen that by drawing rod 23 outwardly from within tube 19 ratchet dogs20 and 21 will be withdrawn from engagement with the ratchet teeth 14when they can then be rotated by rod 23 a half turn to reverse theaction of the ratchet, or a quarter turn to dispose the dogs at ri htangles to the ratchetteeth in which position they will be inoperative asa ratchet. They will be held in their inoperative position by means ofonposite longitudinal slots 19 in the bore of tube 19 into which slotsthe extended ends of pin 31 project, except when the dogs are withdrawnfrom engagement with the ratchet and swung at an angle thereto in whichposition the extended ends of pin 31 will engage shoulder 19 in the boreof tube 19.

To obviate the necessity of referring to my before mentionedapplication, it should be noted that the dogs or pawls 20 and 21 are,longitudinal sections of a cylinder, the dog 21 being preferably longerthan dog 20 and having one portion thereof cut away for the reception ofdog 20, the elongated end of said dog 21 being a complete cylinder andhaving a longitudinal bore 28 for the reception of the spring 22heretofore mentioned, and through which pin 31 passes. The dog 20 islongitudinally slotted, asat 29, and a transverse pin 30 mounted in dog21 extends int-o slot 20 and insures the simultaneous withdrawal androtation of .both dogs and permits a limited longitudinal independentmovement of said dogs. The face of slot'29 is cut away to accommodatethe laterally flattened head 30 of the end of pin 30. This constructionpermits the assembly of dogs 20 and 21 with the spring 22 and thesecuring of these parts together in desired adjustment before they areinserted in the bore of tube 19.,

A pin 31 is disposed transversely of bore 28 past which the convolutionsof spring 22 may be screwed to adjust the tension on dog 20; the pin 31serving also to connect (log 21 with rod 23, as above mentioned. In thepresent form of my invention, in order to prevent a rotation of spring22 with respect to the dogs when in use and when the dogs are rotated bymeans of rod 23, I have turned the forward end of spring 22longitudinally to abut the inner longitudinal face of dog 20, as clearlyshown in Fig.4.

Revolubly mounted about tube 19 is a sleeve 32 on one end of which is abevel gear 33 meshing with gear 16 heretofore mentioned. On the oppositeend of sleeve 32 is another bevel gear 34 meshing with a bevel gear on ahand grip to be hereinafter described. The tube 19 is secured in thecollar 36, to prevent its accidental withdrawal therefrom during theadjustments 1 ,aso,231

to be hereinafter described, by means of an annular groove 19 around theend of sa1d tube into which is snapped a split ring 19. The end of thetube 19 opposite that carrying collar 15 is transversely bored toprovide tapered recesses or sockets 35 and this recessed end of the tubeis journaledin a collar 36 somewhat similar to collar 15, which also issecured to or forms a portion of a tubular member 37 in the bore ofwhich is a longitudinally movable rod 38 the inner end of which istapered to tightly engage the recesses or sockets 35. The rod 38 extendsthrough a disk 39 secured in the opposite end of tubular member 37, andis provided with a knob 40, a washer 41 and a spring 42, similar inconstruction and operation to the corresponding parts on rod 23, and itsopposite end is guided in a preferably reduced portion 43 of the bore ofthe tubular member 37. As seen, recesses or sockets 35 and the end ofrod 38 engaged therewith are tapered so as to insure a snug fit andavoid lateral play or movement when the parts are locked together in anyof their adjusted positions.

Surrounding tubular member 37 is a hollow cylindrical shell orhand-grasp 44 that is spaced from the tubular member at its lower end bya ring or annulus 45, and at its upper end by a bored frustro-conicalshaped block 46, said ring and block adapted to rotate freely upontubular member 37 and to be moved longitudinally thereon. Bevel gearteeth 47 project from the tapered face of block 46 that are adapted tomesh with bevel gear 34 on the adjacent end of sleeve 32 heretoforementioned, and shell 44 is secured tothe elements that space it from thetubular member 37 by bending the end edges of the cylinder, which ispreferably sheet metal, laterally upon the angular portions of saidspacing elements, as seen in Fig. 1 of the drawings.

As shown in the drawings, hand-grasp 44 is in its uppermost position sothat the gear teeth carried thereon are in mesh with gear 34, but it isdesirable when greater power is required to disengage these gears and todo this the shell 44 is moved longitudinally from gear 34 to disengagethese gears In order to retain shell 44 in either of its desiredpositions I have provided a spring pressed ball 48 that is seated in asocket 49 in the portion of the tubular member having the reduced bore43 so that the ball will retain the handgrip with the gears 34 and 47engaged or disengaged. A plurality of balls arranged about member 37 maybe employed if desired.

lull

The end of tubular member 37 opposite collar 36 is fitted into a sleeve50 disposed transversely upon the end of an internally threadedsocket-piece 51, and said tubular member 37 is provided with a taperedrethe transverse pin 30 extends from dog 21 through slot 29 in dog 20and through a bayonet slot 73 in the embossment, and its outer endprovided with a head 73. The operating rod 23 is therefore discarded inthis type. The end o'f'the tool holding block opposite angular socket 12extends through collar 15 where it is provided with the annular groove18 and split ring 17, as shown in the type disclosed in Fig. 1. Betweensplit ring 17 and the adjacent portion of collar 15, the sprocket 62,similar to that shown in Fig, 5, is secured by means of a removabletransverse pin 74.. Intermediate the ends of body 70, preferablyadjacent the bent portion, lateral stud 64 is secured upon Which. isournaled sprocket 65 and said sprocket is operatively connected tosprocket 62 by the chain 66. For the purpose of permitting a rotation ofthe tool holding block 10 independently of the movement of tool body 70,I have provided a headed embossment upon the hub or other portion oisprocket 65 so that by rotating said embossment sprocket 65 will rotatetool holding block 10 through the instrumentality of chain 66 andsprocket 62.

When the pawls or dogs 20 and 21 are in their desired adjustedpositions, the device may be used in the manner of an ordinary wrench,or by adjusting the pawls with relation to teeth 14 the wrench may beused like a ratchet tool to loosen or tighten a nut or bolt head in aninconvenient location, and after loosening the element the nut or boltmay be speeded off in the same manner as with the other types of toolsherein de scribed. The wrench may be also employed to speed on a nut orheaded bolt by means of the headed embossment 75 and then tightened intoplace by the wrench handle, as will be understood.

1 have herein illustrated and described three of the preferredembodiments of my invention, but it will be obvious that otherstructures may be utilized which embody the generic principles hereindisclosed, and I therefore desire it understood that such changes arecontemplated within the scope of the appended claims.

l/Vhat I claim:

1. A tool comprising a socketed member, an arm with respect to whichsaid socketed member is transversely journaled, a second arm withrespect to which said first mentioned arm is transversely journaled androtatable upon its axis, a latch for adjustably securing said arms inany desired relative position, a right angled arm extending from saidsecond arm, and a knob revolubly mounted on the extended end of saidright angled arm.

A. tool comprising a socketed exteriorly toothed cylindrical member, atubular member having a transverse collar at one end in which saidcylindrical member is journaled, ratchet detents mountedwithin saidtubular member and co-acting with the teeth on said cylindrical member,a rod extending from the remote end of said tubular member :ior throwingsaid ratchet detents into and out or" action and reversing theirdirection, a second tubular member having a transverse collar at one endin which said first mentioned tubular member is revolubly mounted, a rodcarried by said second tubular member and co-acting with said first mentioned tubular member within the collar, and an angular breast armsecured to the remote end of said second tubular member.

A wrench comprising a tool holding member, an arm in which said memberis rotatably mounted, a ratchet element carried by said arm andengageable with said mein her, a second arm in which said first arm isrotatably mounted, means for securing said arms in divers positions withrespect to each other, a sleeve rotatably mounted on said second arm,and means mounted on said first arm for transmitting the rotativemovement of said sleeve to said tool holding member.

4. A wrench comprising a tool holding member having exterior teeth, anarm in which said member is rotatably mounted, a ratchet detent carriedby said arm and coacting with said teeth, a rod extending to theexterior of said arm for positioning said detent, a second arm in whichsaid first arm is rotatably mounted, means for latching said arms withrespect to each other, a sleeve mounted on said second arm and movablelongitudinally and concentrically with relation thereto, means carriedby said first arm for rotating said tool holding member, and devicesmounted on said sleeve and adapted to be brought into coaction by thelongitudinal movement of said sleeve with the rotative means mounted onsaid first arm.

an wrench comprising a tool holding member having exterior teeth, an armin which said member is rotatably mounted, a ratchet detentcarried bysaid arm and co acting with said teeth, a rod extending to the exteriorof said arm for positioning said detent, a second arm in which saidfirst arm is rotatably mounted,' means for latching said arms withrespect to each other, a sleeve mounted on said second arm and movablelongitudinally and concentrically with relation thereto, means carriedby said first arm for rotating said tool-holding member, and devicesmounted on said sleeve and adapted to be brought into co-action by thelongitudinal movement of said sleeve with the rotative means mounted onsaid first arm, and elements for holding said sleeve in and out ofengagement with said means.

6. A wrench comprising a'tool holding member having exterior teeth, anarm in which said member is rotatably mounted, a

ratchet detent carried by said arm and coacting with said teeth, a rodextending to the exterior of said arm for positioning said detent, asecond arm in which said first arm is rotatably mounted, means forlatching said arms with respect to each other, a sleeve mounted on saidsecond arm and movable longitudinally and concentrically with re lationthereto, means carried by said first arm for rotating said tool holdingmember, devices mounted on saidsleeve and adapted to be brought intocoaction by the longitudinal movement of said sleeve with the rotativemeans mounted on said first arm, elements for holding said sleeve in andout of engagement with said means, and a rightangle breast arm removablysecured to said second arm.

7. In a tool, a breast arm, a handle member detachably secured to oneend thereof, a sleeve longitudinally and revolubly movable upon saidhandle, a laterally extending arm rotatively and detachably mounted inthe opposite end of said handle member, a retractable latch elementcarried by said handle member and engageable with said lateral arm forsecuring said handle member and lateral arm in adjusted positions; saidarm provided with means to receive said latch element, a tool holderjournaled in the extended end of said lateral arm, and means indisengageable relation with said sleeve for rotating said tool holder.

8. A tool comprising a socketed exteriorly toothed cylinder, a memberhaving a transverse collar at one end in which said cylinder isjournaled, ratchet detents mounted with said member and coacting withthe teeth 011 said cylinder, means for throwing said ratchet detentsinto and out of action and reversing their direction, a second memberhaving a transverse collar at one end in which said first mentionedmember is rotatably mounted, means coacting with said first mentionedmember within said last mentioned collar whereby said first and secondmembers are secured in divers adjusted positions, and an angular breastarm carried by the remote end of said second mentioned member.

9. A brace comprising a substantially U- shaped structure, a holderrotatably mounted in the outer end of one of the arms thereof, meanspermitting the transverse adjustment of said holder with respect to theaxis of the arm in which the same is mounted, a sleeve rotatable uponthe member connecting the arms of said structure, toothed members uponsaid sleeve and said holder, and devices operatively connecting saidtoothed members whereby said holder may be actuated by the rotation ofsaid sleeve.

10. A brace comprising a substantially U- shaped structure; one or theparallel arms of said U-shaped structure being detachable therefrom andarranged to be adjusted to any desired angle thereto, and means forlatching said arm in adjusted positions.

11. A brace comprising a substantially U- shaped structure, one of thearms of said structure being detachably mounted thereon and rotatablyupon its own axis independent of the other structure, means for latchingsaid arm in adjusted positions, a rotatable tool holder journaledtransversely in the outer end of said arm, a pawl and ratchet connectionbetween said holder and said arm, a sleeve on the member connecting thearms of said structure, and devices operatively connecting said sleeveand said rotatable element.

12. A brace comprising a cylinder, an arm in one end of which saidcylinder is transversely journaled, a pawl and ratchet connectionbetween said cylinder and arm, a second arm extending laterally of saidfirst arm in which the latter is adjustably mounted, a rotatable sleevesurrounding said first arm, beveled gear connection between said sleeveand said cylinder whereby the latter may be adjusted to divers angleswith respect to its arm without disengagement of the gear connection, arotatable sleeve surrounding said second arm, beveled gear connectionbetween said first and second sleeves, and an angular arm with whichsaid second arm forms a crank for actuating the brace.

Signed at Chicago, county of Cook, and State of Illinois, this 4th dayof February, 1922.

JAMES ARTHUR THOMPSON.

